[Elecraft] Noise Blanker

[postal_guy]

  Although I'm still very impressed and satisfied with my new K2, I've =
yet to notice much of a difference in using the Noise Blanker. I could =
'see' a slight difference using the Spectrogram program but could not =
hear much of one. Switching to hi or low threshold did'nt change much of =
anything either. I just thought that maybe there was'nt any electrical =
noise to filter out around here.
 =20
  Unrelated to the KNB2, after seeing the suggestion about swapping out =
the R1 resistor (control board), I changed mine to 49k and heard some =
improvement, (and still found little use for the KNB2), so I changed it =
again to 39k and can hear even more of an improvement.

  However, now when I try the KNB2, it actually ADDS interference noise. =
In hi-threshold, it adds some clicking/popping sounds; in lo-threshold, =
it adds a "roaring hiss" sound. Not that I really found a need to use it =
anyway, but has anyone else experienced this? So far I dont mind the =
trade-off, but I would like to see a remedy for this, other than going =
back to the 51k value.